# @putervision/world-model-mcp

Deterministic, persistent 3D/2D spatial world model for AI agents with entity tracking, object permanence, movement simulation, and expected view frustum projection.

- **Type:** MCP server
- **Trust:** 60/100 (B), scored on the package rubric
- **Verification:** community-indexed — nobody has claimed this listing
- **Version:** 0.3.1
- **Author:** PuterVision
- **License:** MIT
- **npm:** @putervision/world-model-mcp
- **Source:** https://github.com/putervision/world-model-mcp
- **Compatible clients:** claude-code, cursor, copilot, gemini (basis: transport)

## Trust

60/100 (B), scored on the package rubric
- Publisher verified: no
- Install scripts: nothing suspicious found
- Prompt-injection scan: not run
- Obfuscation scan: not run
- Evidence age: 0 days

## Security scan

- **Status:** clean
- **Scanned:** 2026-09-12T17:06:21.128Z
- **Version scanned:** 0.3.1
- **CVEs:** none found by OSV at scan time

## Tools

15 declared. Statically extracted from the shipped source — a floor on the surface, not a census.
- `update_entity` — Create or update an entity in the spatial world model. Allows specifying position (3D coordinates), orientation (pitch/yaw/roll), bounding box volume, custom pr
- `query_entities` — Find entities by keyword query (FTS5 search), type, region, spatial proximity, tags, or status. Alternatively, provide entity_id for single-entity location and 
- `set_relation` — Record or update a spatial relationship between two entities (e.g. on, inside, next_to, above, below, near, contains, occluded_by, connected_to, facing, holding
- `get_spatial_map` — Return a structured spatial layout, topological graph, 3D asset export (gltf/obj), or high-level environment summary of the known world.
- `simulate_movement` — Simulate physical movement and test for AABB collisions, or calculate waypoint navigation paths between entities and coordinates.
- `ingest_observation` — Merge structured vision perception detections into the world model (re-identifying existing objects and boosting confidence), or reconcile observed state agains
- `get_expected_view` — Calculate what entities should be visible from an observer's pose and field of view frustum cone.
- `link_to_goal` — Associate entities or spatial regions with state-memory task DAGs (link/unlink), or extract goal-relevant spatial context slices.
- `record_outcome` — Update the world model after an action executes (moving an entity, modifying properties, destroying or creating objects).
- `manage_spatial_spec` — Manage Spatial Spec-Driven Development (Spatial SDD) baseline contracts and live compliance verification against physical constraints (min clearance, containmen
- `create_evidence_pack` — Package entity positions, observation reconciliations, and snapshot states into an immutable, SHA-256 hashed cryptographic evidence pack for compliance and stat
- `use_spatial_blackboard` — Multi-agent shared spatial blackboard for publishing ephemeral intentions, waypoints, and claiming exclusive spatial access to prevent collisions.
- `manage_snapshot` — Unified spatial snapshot and time-travel management: save checkpoints, restore states, diff two snapshots, list history, undo mutations, or inspect world state 
- `generate_game_inputs` — Generate Playwright MCP automation inputs (WASD, mouse-look, clicks) or project/unproject 3D entity coordinates and screen pixels.
- `wait_for_spatial_state` — Poll and wait until an entity reaches a specific spatial state (exists, becomes active, confidence exceeds threshold, or enters region).

## Install

**Verdict: review** — Installable, but 1 thing to check first: No publisher has proved control of this listing; it is indexed, not vouched for.
**Cautions** (coverage gaps and advisories — never blocking)
- No publisher has proved control of this listing; it is indexed, not vouched for.
**Config** (claude-code):
```json
"{\n  \"mcpServers\": {\n    \"world-model\": {\n      \"command\": \"npx\",\n      \"args\": [\n        \"-y\",\n        \"@putervision/world-model-mcp\"\n      ]\n    }\n  }\n}"
```

## Blast radius

Contained to moderate — no credential declaration found, from the publisher, the upstream registry, or the README. Known so far: runs on your machine; read-only tool surface.
- Floor 13, ceiling 31 (tier: unknown)
- `unknown` means the floor and ceiling land in different bands — not measured enough to name one. It does not mean low.
- This is impact, not likelihood. A high radius is not a defect: a filesystem server is supposed to write files. It is never part of the trust score.

## Machine-readable views of this entry

- Signed JSON: https://forgeregistry.com/api/v1/packages/%40putervision%2Fworld-model-mcp
- Install plan: https://forgeregistry.com/api/v1/packages/%40putervision%2Fworld-model-mcp/install-plan
- Alternatives: https://forgeregistry.com/api/v1/alternatives/%40putervision%2Fworld-model-mcp
- HTML page: https://forgeregistry.com/registry/%40putervision%2Fworld-model-mcp
- MCP: POST https://forgeregistry.com/api/mcp → `forge_get_package` / `forge_install_plan`

## About this document

Generated by Forge (https://forgeregistry.com) — a compact rendering of the same record served, signed, at the JSON URL above. Trust and scan facts are the registry's own measurements; anything Forge did not measure is named as unmeasured rather than omitted.